I have limited experience with Dobe's ... but these are the differences I notice:
1.) They are not as trustworthy off lead. They have tunnel vision when there is something they want to chase - and that becomes more important than pleasing a master!
2.) Terribly hard headed (doesn't care as much about pleasing you - but don't take that as meaning they don't love you as much!) My Dobe mix will listen when it benefits him.
3.) Excellent family dog! Loyal, tolerant and caring of children (not saying you should leave any dog alone with any child), protective, very loving with his family.
4.) Scary quick learning! Very bright - but I guess GSD's are also
I"ll think of more I"m sure ....
1.) They are not as trustworthy off lead. They have tunnel vision when there is something they want to chase - and that becomes more important than pleasing a master!
2.) Terribly hard headed (doesn't care as much about pleasing you - but don't take that as meaning they don't love you as much!) My Dobe mix will listen when it benefits him.
3.) Excellent family dog! Loyal, tolerant and caring of children (not saying you should leave any dog alone with any child), protective, very loving with his family.
4.) Scary quick learning! Very bright - but I guess GSD's are also

I"ll think of more I"m sure ....